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Nioxin System Kit 4 | 3-Part System for Progressed Thinning Colour-Treated & Damaged Hair (300ml + 300ml + 100ml)

For colour-treated or damaged hair with more significant thinning, Nioxin System Kit 4 delivers the most powerful thinning hair solution in the colour-hair Nioxin range. This clinically and dermatologically tested 3-part professional system is formulated to thicken, strengthen and protect heavily processed or colour-damaged hair experiencing progressed thinning — with 8 out of 10 users seeing visibly thicker, fuller hair within 30 days.

Key Benefits

  • Advanced formula for progressed thinning — the strongest Nioxin system for colour-treated or damaged hair
  • Clinically proven results in 30 days — 8 out of 10 users saw thicker, fuller hair within a month
  • Colour protection included — strengthens thinning hair without compromising colour vibrancy
  • Supports scalp health — removes excess sebum and impurities that can inhibit growth
  • UV protecting botanicals and antioxidants — additional scalp and strand protection for chemically treated hair

Why You'll Love This Product

System Kit 4 is for those who need more than the basics. If thinning has become more noticeable and your hair is also colour-treated or damaged, this kit works harder to address both concerns simultaneously. The combination of scalp-clearing actives, strengthening ingredients and colour-protecting botanicals makes it the most complete option for chemically processed, visibly thinning hair.

When to Use

Use at least 3 times per week as your main hair care routine. Ideal for colour-treated, bleached or heavily processed hair with more advanced or progressed thinning. Suitable for all genders.

How to Use

  1. Shampoo: Apply Nioxin System 4 Scalp + Hair Shampoo to wet hair, lather and rinse thoroughly.
  2. Conditioner: Massage Nioxin System 4 Scalp + Hair Conditioner from roots to ends and rinse thoroughly.
  3. Treatment: Apply Nioxin System 4 Scalp Care + Hair Thickening Treatment from roots to ends. Do not rinse.

What's Included

  • Nioxin System 4 Scalp + Hair Shampoo 300ml
  • Nioxin System 4 Scalp + Hair Conditioner 300ml
  • Nioxin System 4 Scalp Care + Hair Thickening Treatment 100ml

Key Ingredients

B-Vitamin Complex including: Thiamine (B1), Niacin (B3), Pantothenic Acid (B5), Pyridoxine (B6), Biotin (B7), Folic Acid (B9), Cyanocobalamin (B12). UV-protecting botanicals and antioxidants. (Full INCI list on individual product packaging.)

  • £59.99